driver = smtp
interface = HOSTIPV4
port = PORT_S
+.ifdef FALLBACK
+ socks_proxy = ${if eq {1}{1} {}}
+.else
hide socks_proxy = HOSTIPV4 port=PORT_D OPT
+.endif
hosts_try_fastopen = ${if eq {$local_part}{user_tfo} {*}}
debug_print = transport_name <$transport_name>
.ifdef _HAVE_EVENT